Traffic regulator



March 30,1926. 1,578,828

I F. J. HUSBANDS TRAFFI C REGULATOR Filed March 15, 1921 7 Sheets-Sheet 1 vgki// March 30 i926. 1,5378,828

F. J. HUSEANDQ I TRAFFIC REGULATOR v Filed March 15, 1921 7 Sheets- Sheet 2 mama 577/74 J flask/124.5

March 30 1926 F? .2. z-wsmwns TRAFFIC REGULATOR Filed March 1921 '7 Sheew-Sheet :5

rm (E22 :2

v "6/ wmmmlm I I LOCAL COHTEOL STATIOPL March so, 1925. Lsmszs F J. Husamms TRAFFIC REGULATOR Fiied March 1.5, 1921 v Sheets-$11961, 4

March 30,1926. I 1,578,828

F. J. HUSBANDS TRAFFIC REGULATOR Filed March 15, 1921 '7 Sheets-Sheet 5 I I 5 67" jig I mung Frank Jflustd/ms.

March 30 1926. 1,578,828

F. J. HUSBANDS TRAFFIC REGULATOR Filed March 15, 1921 '7 Sheets-Sheet 6 54/ 1? J/wmw.

March 30 19266 1,578,828

F. J. HUSBANDS TRAFFIC REGULATOR Filed March 15, 1921 '7 Sheets- Sheet '7 U nrr 1a s TA FFE,. Y

FRANK J. HUSBANDS, OF LOS ANGELES, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, T ACME TRAFFIC SIGNAL COMPANY, A CORPORATION Q16 CALIFORNIA.

rnarrrxc :ansoLA'ron.

Application filedMerch 15, 1921. Serial 1%. 452,550.

To all who-m it may concern.

Be it known that I, FRANK J. Hosuanns, a citizen of the United States, residing at Los Angeles, inlthe countyot Los Angeles and State of California, have invented new and useful Improvementsin Traflic Regulators, of which the following is a specification. Y

This invention is a tiafiic regulator pro viding signalling means at points of trafiic intersection, the signals for the respective points of traffic intersection .heing either independently locally controlled. or simultaneously controlled from a central station.

The-local controlling means is arranged so that the operator may control the. signals so as to signal for traffic movement in one of the cross directions and at the same time signal for stopping of trattic movement in the other cross direction, and may then change the signals .so as to signal for stop ping of ,tratlic movement-in the first direction and formovement of trailic in the cross direction. The local controlling means is also so arranged that when an operator stops controlling the mechanism locally, it will. again be controlled by the centralstation.

The central station controlling ,meansis automatic-in its action, and is arranged to firstposition the signals at a point of traffic intersection so as to signal for stopping of traffic in the cross directions for a short interval, say five seconds, and to'then change the signals controlling trafiic in one direc-- tion so as to signal for movement of traffic, ,while maintaining the signals for the cross direction of traffic-in a position to signal for stopping of traiiic'. After a predetermined interval, say thirty seconds, the sig 40 nals arranged for signalling tor tratiic movement are again returned-to a position signal ling for stopping of traflic n'1o\"ement,-so that traffic is again stopped in the cross directions. This 'condition' exists for another short interval. and the signals controlling traflic in the second of the cross directions are then-moved so as to signal for trafiic movement, While the signals controlling traflic in the first of the cross directions remain unchanged. so as to signal for stopping of said traffic. This condition is maintained for a period of time equal to that previously described. and the signals are then again moved So as to signal for stopping of ti-atticin cross directions for another short interval. This cycle of operation is repeated indefinitely, and when it is desired to stop using the system, the manual manipulation of switches at the central station will cause all ofthe signalling elements to move into non-signalling position.

The invention will be readily understood from, the following description of the accompanying drawings, in which v,

Figure 1 .is a vertical section through one of the signalling elements with the front of its casing broken away.

Fig. 2. is a transverse section on the line 2-2 of 1.

Fig. 3 is a detail section on the line 33 of Fig. 1. I

Fig. 4 is a vertical section on the line 4- -4 of Fig. 2.

Fig. 5 is a diagrammatic showing of several points of traflic intersection. such as are formed by intersecting streets, units ot the improved trafiic regulator being positioned at the several points of trafiic intersection.

Fig. 6 is a diagrammatic showing of the traflic regulating system including the central controlstation', one of. the signalling units, and the local control for the same, the

mechanism; being actuated by the central control station, with the signals in the position Whic -is maintained for a. short interval, and signalling for stopping. of traffic in the cross directiqns. i

Fig. 7'jis a similar View, but notshoiving the. local control station in detail, and showing the next position of the signals of a unit, in which the signalsarearranged for traffic stopping in one direction and for traffic movement in the cross direction. 7

'Fig. 8 is a similar View showing the next position of the signals where traffic .in cross directions is again stopped for a shortinterval.

Fig. 9 is a similar viewsho wing the next "position'of the signals, signalling for traffic movement in the first direction and for stopping of traffic in the cross direct-ion.

Fig. 10 is a diagrammatic showing- 0f one of the signalling units and the local control for the same, the latter being operated so.

as to signal for traffic movement in one direction andfor traffic-stopping in the cross direction.

Fig. 1'1 is a similar View showing the next succeeding step where the local control -me,chanisin is moved back to aneutral 100- 130 sition, maintainingthe signals as previously v signals.

described, and causing the illuminating means employed'in connection with the sig-'- male to be energized in accordance with the -Fig. 12 is a similar view showing a second neutral position to wlnch the local controlling mechanism is then moved, the s1grials remaining unchanged.

Fig. 13 is a similar view showing the second operating position of the local control to which the latter is next moved, and in which the signals are arranged for stoppin of tratficin the first direction and for tra 'c movement in the cross direction.

Fig. 14 is a perspective diagram of one unit of the system showing the wiring for i trated as employed in connection with points.

the respective signalling elements.

. Fig. '15 is a'perspective view of the switch for the local control of a unit.

The improved traffic regulator is llusof trafiic intersection as shown in Fig. 5, which parallel streets or roads-are shown at A and parallel cross streets or roads are shown'at B. One of the signalling units of a traffic regulator ispositioned at each intersection of streets A and B, and each unit consists of signalling elements mounted at the respective cornersof the traliic intersection. semaphore arms, .one of which signals for trafiic movement, while the other signals for stopping of trafiic.

q the words so and Stop thereon. Each As an instance of this arrangement the semaphore arms may have signalling element is so arranged that either the go or the stop semaphoremay be proje'cted into signalling position, while the other semaphore is retracted within the signalling element so. as not to show.

In the drawings two streets are shown intersecting in each instance, thereby forming four corners at a trailicinters'ection and necessitating the employment offour of the signalling. elements for each unit. 'It will be obvious that when more than two streets intersect, a greater number of corners are.

formed so as to necessitate the employment of a greater number of signalling elements for eachunit. In every" case a signalling element is provided upon-cach corner irrespective of the number 01" corners at the intersection, and each of the. signalling elc- -ments is arranged to control trafiic along the street at the side of the corner-along which traiiic naturally moves in direction toward the signalling element. I v The signalling elements of a unit are'so arranged that the two eleme'nts'of a unit,

which control traffic in opposite directions along one line of traflic intersection, may be dependently operated so as to signal for either traflic movement or stopping of traffic in said opposite directions. The signalling Each signalling element has two elements controlling'trafiic in opposite directions along cross lines of traffic intersec-- tion, are similarly dependently controlled. The signalling elements for one direction of traffic may signal for either traflic movement or stopping of traffic, while the signalling elements for a cross direction of traific show the opposite signal, the controlling of the signalling element being either from a central station or from a-local control, and being so arranged that the signals may be rcversed, so as to signal for traffic movement and stopping of traffic in'cross directions,

andin changed. relation to the first signalling position. The mechanism is also so arranged that all of the elements of a unit may signal for traliic stopping between the vchanges in direction .oftraflic movement,

and meansgare also provided for retracting both semaphores of each of the signalling elements comprising a unit, so that the entire system becomesinoperative.

The respective signalling elements include a casing 1 mounted upp'npsupport 2. The

casing is, preferably, partitioned by Walls 3 spaced inwardly fromathel side walls of the casing so as to form outer longitudinally extending s aces 4, and a central longitudinally exten ing chamber 5. A support 6 extends upwardly within chamber 5 and car- .ries a transversely extending cylindrical shell 7 adjacent the upper endof easing 1.

A rod 8, preferably, projects from this shell above casing land supports a closure cap 9 for the casing. The shell 7 is transversely divided by a partition 10. Diametrically op-.

posite field windings 11 are supported by shell 7 within the portions thereof at the rellu vidcd in partition 10, and at their opposite ends are journaled in the end walls ot'shell 7, so that outwardlyextending shafts 14 of these arn'iatures project into spaces Counterweights 15 extend; laterally from shafts 14 in diamctrical alinement with arn'iatures 12, and semaphore arms 16 extend laterally from shafts 14 in d ian'ietrical alincment with couiltcrweights 15 and armat'ures 12, and extend from shafts 14 in directions opposite to that of the counterweights.

The respective arniatures, counter-weights, and semaphores within shell 7, are arranged at right angles to one another, so that when one of the semaphores projects laterally from cas'ing 1, the.othcr semaphore will be retracted within thespace 4 provided by the casing. -It will be noted. that the-semaphore which is projected from the casing will have its armature in alignment with current throng the sam'c inay he' reversed the field windings, 11, and that the semawith relation the, alternating current phore which is retracted will have its arma-I ture turned at right angles to the field wind- %)ne of the semaphores is a go signal and the other semaphore is a stop signal, and for this purpose the respective semahores may have the words Go and Stop indicated thereon as shown at 18. Illumi4 nating means are employed in connection,

with the stop and go signals, and for this purpose a casing 19 is mounted upon support 6 and projects laterally from casing 1 below the semaphores. This casing is divided by partition 20 into lamp boxes 21 having illuminating means, such as usual incandescent lamps 22. Transparent bulls eyes 23 are provided in the respective lamp boxes and are distinctively colored, red and green, for

. example, so that illumination of the same will signal for traffic stopping and traffic movement respectively. p

In operation the field winding of a signalling element is energized and thearmatures .fOl the respective semaphores are also energized. .Tliepolarity of the current through the armatnres may be changed with relation to the polarity of the current through the field windings, sothat the armatures may be reversely rotated in either direction. It will beunderstood that this reverse rotation of the armatures will swing the semaphores u and down into either signalling or nonslgnalling position. Since the two armatures and the two semaphores of a signalling element are arranged at angles of approximately 90 to one another, it will be seen that when the armatures are thus rotated, one semaphore will be up while the other is down, and thatby reversing the direction of rotation of the armatures, the

current, the field windings will be energized first semaphore will be swung down and the second semaphore Wlll be swung up. As

shown in Figure 1, the shell 7 is provided -with iesilient stops 4 arranged to be engaged by the counter-weights 15 for defining the two extreme positions of the semaphores 16. It is by means of these stops that the rotational movement of the arma- If the electrical current employed in the operation of the signalling system is direct with a current of uniform polarity and the armaturcs will be energized by a current, the polarity of which may be reversed so as to cause rotation of the armatures relative to the field windings. If alternating current.

is employed, so that the polarity of the current through the field windings and the armatures is constantly reversing, the armatures are so arranged that the alternating through the lie d vinding s, in order to provide the 'ne'ces'sarl relatively opposite polarity between the field windings and the armatures for causing rotation of the 1atter. i

The illuminating means for a signalling elementis soarranged, that when the (to semaphore is shown the green hulls eye will he lighted, and when the Stop "sci'naphorc is shown the red bull's eye will he iilumi nated. A suitable audible signal shown as a hell )5 is also provided in casingl and is arranged to be sounded whenever the semaphore displayed by the signalling element is changed.

'A suitable manually controlled switch mechanism is provided for the signalling elements comprising each unit, in a position convenient to "an operator, and this local control mechanism makes and breaks necessary electrical circuits leading from the same through the-fieldlwindings, thearmatures, the lamps, and the dolls of thesignaL- ling elements com 'irisin'g a unit. The central control station which controls the operation of a plurality of signalling units, has a suitable automatically actuated make and break mechanism for 'circuits'leading from a suitahle source of electrical energythroughthe same and thence tothe rcspet tive local control mechanisms. The system is so arranged that a local control mecha-. msm may he ihI'OWllxOlll/Ol operatiomso that the unit with which it is associated will be controlled by. the ,central station. or the local control may be brought into P use for actuating the unit, and in this lat-" ter case the central control station will condo tinue to function without'relation to the particular unit which is being locally controlled.

In Fig. (i I have diagramn'iatically shown one of the signalling units with its local cpntroland also the central controlling station with the connections between the same and the local control. 'lheysignalling unit is-he'mg operated by the central station.

"lhe armaturcs'li oi the two signalling 11., elements which control trallic in opposite di= rcctions along one way of trafiic intersection are shown at C, arranged for dependent actuation, and the arn'iaturcs of the two signalling elements for traiiic along a .crosslgfi way, are shownat D. The field windings 11 for armatnres C and Djare arranged in parallel as shown at E.

p The local control comprises a casing 30 carrying a plurality of circumforentially arranged electric contacts. and a disc' 31 carrying co-opcrating contacts is journalcd to the casing for rotation bymcans oi lever 32 with relation to the same so as to" 'ntkcqor break connections between the tw etsof contacts The casing carries sets of contacts F, G, H, I and J each consisting of live con-- y The disc 31 carries contact-Jnakers 43,

44, 45, 46 and 47' co-operating with the sets I g the wires 55 for the armatures of slgnalling of contacts F to J respectively. These contact makers are of a length suflicient to bridge any two adjacent contacts of; their respective co-operating'sets, as clearly shown in Fig. 6.

of contacts K, and so arranged-as to disengage contacts K, or have contact maker 49 bridge either contacts '38-'39 or 39-40, or.

have contact maker 48 bridge ,contacts' 38'j39. Contact makers 5.0 and 51 vcarried by disc 31" co-operate with contacts. L and M so as to either bridge contacts ll- 42, or

disengage the latter.

=The parts are so arranged that when convtactmakers 43 to 47. bridge contacts 33-34, as shown-in Fig. 6, the set of contacts K are. disengaged by contacts 4S49, and sets .01 contacts L, and M are bridged by contactniembers-50-51. \Vhcn the parts aremoved to the position shownin Fig. .10, contact makers 6&3-47 bridge contacts 3435, the

set of contacts K are still disengaged by contact makers 1-8-49, and contact makers 50-51 are moved beyond bridging position with relation to sets of contacts L and M.

Disc 31 is then moved to the position shown in Fig. "11, where contact maker's" 43l7 bridge contacts -36, contact maker 49 bridges contacts 38-39, and contact makers 5051 have passed beyond sets or contacts L and M. In thenext position, shown in Fig. l2,d1sc 31 has been further rotated Just sufficient to cause contact maker 19 to bridge contacts 3940 instead or are moved through the above described po- Sitions in the reverse order. Referring to F1g.-1 l it will be seen that the armatnres for the signalling elements are wound in the same direction, and thatthe two armatures :included in each of the signalling elements C, are connected by a wire leading from the end'of thestop' semaphore armature opposite its semaphore, to the end of the goes'emaphore armature The disc also carries contact, makers 48 and. 19 co-operating with the: set

which is adjacent its semaphore, and that the two armatures of each element Dare connected by a wire 55 leading from the end' of the stopv semaphore armature adjacent its semaphore, to the end of thego semaphore armature which is opposite its semaphore; I a i As shown in Fig. 6, ,aw re 56 connects elements 0, whilefwi-re 56 similarly connects the wires 55 for the armatures ofsignalling elements -D. These Wires 56 and for the signalling elements 0, and ,ior the signalling elements D, are connected respeotively as by wires 53 and 53 to wires 58 and 58 In'similar manner wires 54 extend from the opposite ends of the signalling ele- .nlBIltS G, and wires 54 extend from the'opposite ends of the armature elements controlling the go semaphores for the signalling elements D; A 'wire'. 59 connectsthe wires 54 and a wire 59 joins wires '54.

Wires 58 and 59 are connected as shown at 60, with a manually operated switch 61 in the wire 59, and in" similar man-ner wires 58 and 59* are connected as shown at 62, with a manually operated switch 63 in the "wire 59. The. switches 61-63 are arranged for dependingactuation and for this purpose may be combined in a;t'\vo blade single throw sw. ,ch.

By" the arrangement as thus described, it

ill be seen that current of one polarity flowing through wires 5859 or 58-59 and through the arn'iature's connected thereto and thence to the connection57, will cause the semaphores of each element to be op positely moved to bring the stop semaphore up and the go semaphore .down, or yice versa. and furthermore the elements C and D will be oppositely actuated, i. e. if such a current in C elements moves the stop semaphores up and-the go semaphores down, in the D elements itwill move the go semaphores up and the stop semaphores down. It will be further observed that a changefiin the polarity oi the current, will cause each of the semaphores to be reversely actuated, and thereby still cause the C and D elements to display opposite semaphores in a reverse arrangement.

The bells 25 of signalling elements C are arranged in parallel between the stop semaphore armature elements of said signalling elements and are shown as connected to wires 56 and 58.

The bells of signalling I elements I) are similarly connected to wires wires 65, and these wires for the'el'emen'ts.

comprising a unit are connected to a wire (iii. The other sidc'ot' one of lhe lauips of "the. respective. clen'ients are connected by a' wit-e 67, while the other side ofthe other.

lamps for the respective elements are connected to an extension of wire 58. The red and green lam'psof one of the sets of signalling elen'ients Q or I) are connected. between wires (3 3(57 and wires 66 58 respectively,'while the red and green lamps forthc other of elements C or'D are oppositely arranged between wires 66+58 and wires (36-67. will be seen that a closed circuit through wires G667 will illuminate the red and green lamps for signalling elements C and D respectively. while a closed circuit through wires 65-58 will similarly illuminate lamps of the opposite color for elements 0 and D.

The field winding-s for the elements of a unit are connected atone. end to wire (37, and the opposite ends of the field windings are connected toa wire- 69.

The contacts 34 of/contactsets F to J are connected respectively to Wire/"69, wire 67,

centrally controlled as shown in Fig. 6,

switch 61-433 is open and disc 31 is turned until the contacts 33-345of contact sets Flo 4 J are bridged, so that current flows directly from the central], station to the signallingunit and the looal control is inoperative. This'condition oft the local control is maintained throughout the operation of a. unit, fromthecentral control..

The central control station is provided with auniformly rotating'shaft having contact discs N to 'W fixed thereon. .The contact makers ofthese discsiare positioned in a definite circumferential 'relation't'o one another for closing circuits in a predetermined order through the resnctive signalling un ts, and contacts -7l'; co-operate with i the respective discs so as to be bridged by the contact makers thereof. The arrangement of .the Contact makers of the discs N to \V will be described by reference to Fig. 6, the rotation of said discs being clockwise; i. I

Discs N and 0 have diai'netrically opposite arcuate contact makers 72, so that during a cycle of operation. .a circuit. is closed through their contacts 70--i'l, by one or the other of these contact makers during the resg'iective interval for traffic movement incross three; tions, for lighting the lamps of the signalling units. l t gill be noted that the contact makers 72 of the discs N and are oi different. lengths, and for the purpose-ct mam- I taininglhe lamps for the respective signals illuminates for periods'corresponding to the By this arrangement it v periods which the signals;occupydisplayposition, because in actual. practice it is generally necegssa-ry that one sen'laphore or the other he "di'splayed for a greater or less interval than the other in order to take care of a condition in whichthe traffic along one slrectis greater than the traffic along an intersecting street. Disc P is provided with diametrically opposite contact makers 72 and 72" so arranged that Contact maker P72 will engage contacts- P70+71, just after contact 1nak'e1-O72 disong-ages its contacts 70+71; and the contact maker P72 engages its contacts just after contact maker N72 disengages contacts N70 7 1 Contact makers P72 and P72 are of such -length as to each bridge contacts P70-71' during one ofthe short intervals when allelements of aunitare at stop, and at the start ofthe'succeeding period of time when one set ofelemcnts C or D are changedto go. Contact maker vP72'controls the set of elelnentsfD and contact, maker P72 controls the set of elements C of asignalling unit. The spaces between contact makers P72 and 72 during which the circuit through contacts P'ZO-fl is broken, are of such length as to maintain the s'ignalling elements in their two reversed arrangements of go and stop positions for cross directions for the required interval of time.

The contactanaker 72 of disc Q is arranged to bridge contacts Q70-71' during the interval when contact malter P72 first bridges contacts P70-71 so that all of the elements-of a. unit'will-be in stop position. Contact inakerQJ72 passes beyond itsrcontacts 707l, atthe end of the short interval, and at the beginning 'ofthe period of time when contact maker'P72 bridges its contacts 7071;with the rear. portion of said contact maker P72, and when one set of elements, shown as elements I), is changed to go position; i 'The' contact maker 72 of disc R bridges its contacts 70.71 during the final portion of the bridging of contacts P70-7 1 by contact ,n'iaker P72, so that a circuit is closed through contacts'R70.-7 1v at the end of the short interval when all signals are in stop position,

as controlled by contact maker Q72, and

when the set of ele position.

The contact maker 72 of disc S and the. contact maker 72 of disc T are diai'netrically opposite the contact makers 72 of discs Q and R, and function'with relation to contact maker P72 'in manner similar to that previously described in connection with contact. maker 1P7 2 and contact makers Q72 and R72. In other words, the contact maker (#72 controls the short inter-i al when all elements are. at stop and which .is prior to the movement of C elements to go position, and the contact maker "2 controls this movements D is changed to go ment of elements to go position. It will be understood that the spaces upon discs Q and S between contacts Q72 and S72 break their corresponding contacts during the respective reverse arrangements of signalling elements C and D-for go and stop in cross directions, and also during the succeeding short intervals whenjall theelements are at. stop. 'In similar manner the spatesbetween contactmakers R72 and T72 break their corresponding contacts during the shortintervals when all elements are at, stop and during the succeedingintervals when elements C and D are in their reverse arrange;

ments for signalling in cross directions. I

The contactmakers72 upon discs U and V are arranged to reverse the polarity of the current through the annaturesof the signallingelements, and these contact makers arediameti'ieally optposite "one another, and 707 1, and V7( 71 re-.-

bridge "contacts spectively,so as-to function in'fconjunction terval. As

with contact makers 072, P72, Q72, R72 and in conjunction with contact makers N72, P72, S722 T72 respectively. i

Thus'it will be noted that contact maker U72 bridges its contacts, while contact maker P72 first bridges its contacts, and'continues to bridgeits contacts as contactmak ers P72 and Q72 bridge their'contacts 'tomove all elements to stop position. for a short, in-

contact maker Q72 passes beyond. bridging position,-

maker U72 continues -'t0 bridge its contacts, and as contact maker B72 passes beyond bridging position contact maker U72 similarly moves beyond bridging position.

At the end of the portion bf the cycle of operation during which the Child D ole ments'remain in stop and go position respectively, and when contact makers P72 and S72 bridge their contacts, to return all eleinents to stop position. for another short interval, contact maker V72 bridges its contacts, to reverse the polarity of the current through the armatures, and when contact makers P72 and S72 pass beyond bridging position and contact maker T72 bridges its contacts to move the elements 0 and D to the reverse opposite signalling positlon, contact maker V72 remains 1n bridging position,

-' and passes beyond such bridging position as contact maker T72 similarly passes beyond bridging position.

The signalling elements C and i) will then,

remain in their reversed opposite signalling pomtmn: during the ,IGmlUIldGI of a cycle of operation, and until contact makers P72,

Q72 and U72 again' bridge their contacts toagainmove all-elements to stop position for the start of the succeeding cycle of operation. I 1

and contact- -maker R72 is moved into bridging position to cause the' C vand D elements; to display stop and go.v signals respectively, contact Disc WV is provided with diametrically opposite contact makers .72 and 72* which are similar to contact makers P72 and P72 and which are similarly arranged. Contact makers 7 2 and \V7 bridge theircontacts 'Ritl fl, for closing thecircuit throughfthe field windings E, whenever ei'thcr set of signalling elements C and D are actuated, and the bridging of contacts'fW7071 by 4 contact makers V72 and V72? alsoiunclions in C()ll il lll(3il()ll with the hridgihgglhf.

contacts Q'71 and i570.71 by their contact makers. 'toclose circuitsthrough- .the armatnres of C and D, signalling elements respectively. 1 r

In operating the traliic regulator from the ccntral sta'lioindisc 31 of the local control for eachsignalling unit, lett'in the posifor each unit' is opened. 4

\Vith the parts as; shown lntblg. 6, the

tion shown in Fig. 6 and the switch 61-t53 signalling clcnients of a unit. are-all tiisplaying stopsei'naphorcs for one of the five second intervals between illlillCJHOVQl'llQllt in cross directions.

ments were displaying go scnniphofcs, and the D elements were displaying stop sema phores, so that the controlling means are shown in their arrangement which has just actuatcdthe O element to bring the same to stop position.

As. will be readily seen; contact molten P72 bridges its contacts so as to close a circinttrom one ofthe lead w res 75' through contacts 1f7071 and thence to a, wirecon-I nected at its other end to contact G33. which I been energized by a circuit from" lead 75,

through contact '70. contact maker Q72, contact Q71, and a split wire 81 leading to contact L42 andtd contact H32. From contact L42 the circuit continues through contact maker 50.contact-l i l1, a wire leading to' wire 59 and thence to wires 54 and through the. go semaphore armatnres of elements C. In similar manner the circuit continues beyondthe split, throughcontact H33, contact maker 45, contact H34, :1 wire leading to connectionGO, and thence by wire 58and wires. 53 to the stop" semaphore armatures of elements C. The circuits'tl'u'ough the go and stop seimipliores 'of elements C are completed through wires55, wire 5(ixconnection 57", a wire leading to contact 134, "cont-act contact V70 and the second- 70-41 so as to co-operate withv contact makers P72 m d -P72 and their contacts Just previous to this positioning of the .sc'nmphorcs, the C cle- Cir semaphores. itbeing understood that the they will remain in any one o'f'the two ex- Vdiscs forming the controlling mechanismbe traced from lead 75 through contact R71,

passingbcyond its contacts. these elements one of the intervals for l-i'ioren'ienl' of trallic,

71 and lV70-71, so that current will not be described. At the sometime a circuit is closed from lead 7 5, through contactV? 1, contact maker V72,"contact V70, the .wire leading: throughthe local control to connection 57, wire 56 and wires 55 to the arms turcs of the D elements. Thereturn from. the arniatures is by way of Wires 53 and maker 46, contact 133, a wire leading to contactVTO and having an extension leading to contact UTLconlact maker U72, contact U70 and thencem lead 76. The polarity of the current in this circuit is such as to swing the aruialurcs of the signal clcnientsupon heir pivots and change said 'cl'emcnts from their previous go position to stop" position. It will be noted that the circuits through the armaturcs of the D ele nicnts tire broken so that said armatures are not cncrgiked d the D elements will therefore rema' their previous position disphiyino' stop as previously described, to the splitwire SO. The circuit continues through thlis'splitjwire, and thence through an extension of the same beyond contact R70 to contact S70,- thence through contact maker S72? and contact S71 to lead 76. It will thus be seen that the mounting of all of the elements is such that by a current of opp'osite polarityto that previously employed, and as a consequence the armatures will be rotated to bring down the g0 semaphores and display the stop semaphores. The unit is thus again in the position fcrone of the short intervals during which the t'raflic stops in both directions.

trcnie positions to which they are moved.

'At the end of the fivesecond interval the will have rotated to the position shown in Fig. 7 where contact maker Q72 has moved beyond its contacts Q70-71 and contacts R70-71 are bridged by contact maker R72.

lViththe parts in this position, a circuit is closed, through the field windings E in manner similar to that previously described and the closed circuit-is formed which may 'tinucs they will assume the position shown in Fig-hand wherein the CI elements are actuated to display go semaphores. In this position contact maker S72 has moved be contact maker R72, contact R70, and thence to a split wire 80, one split of which leads through contacts M (Fig. (5) bridged by contact maker 51 and to wire :39", from thence through wires 54 to the go semaphore armatures'of elcments D. The other split of this wire leads through contact J33 (Fig. 6), contact maker 4", contact J34. to the connection 62 and thence through wire 58 and wires 53 to the stop semaphore armatu'rcs of elementsl); A common return is provided froni wires 55 through wire 56 to the connection 57. and thence back to lead 76 by way of contact maker U72, as previously described.

It will thus be seen that the armaturcs of elements D are energized so as to swing the semaphores of these elements to their opposite position. or 'in other words to a position displaying, the go semaphores. The circuit. through them-matures of the (3 elements having been broken by contact maker Q72 bridges its-contacts. Contact makers P72 to form a circuit through the field windings E, and contact maker V72 continues tob'rid re its contacts so that a circuit is formed which may betraced fromlead75- through the contact maker V72 to connection 57, asjustdcscrihed. The circuit'continues through wire 56 to wires 55 and from way of wires 53 and 54 to wires, 58'and 59. The circuit continues from wires 58 and. 59 through split wireSl, as previously described. and an extension of-this split Wire From thence the circuit continues'through "2 and contact T71 to lead 7 6. The circuit, 'sthus described, energizes the armatures of will continue to display the stop semaphores. The parts remain in this position during and during which the control discs rotate to break contacts P70-7 1, R7()-7 1, U70

unnecessary expemled while the signals remain in said position. At the end of the interval tor'traiiic movement, the control discs will have rotated to the position shown in Fig. 8. and contact makers P72 and 72" then bridge their contacts to close a circuit through the fieldwindings E as previously the elmnents displaying go semaphores will lamps, as previously described, and includ 5 5am wires58 and 59, which are connected, v

As the rotation of the control discs conyond its contacts, and contact maker T72 and WV72 still bridge their contacts so as thence through the armatures of the C elements. The return from the armatures 1s by leads-beyond contact QTl to contact T70.

the 0 elements by a current of reversedjpolarity to that first described, so that the i go semaphores of the C clementsxwillybe ing-red and green bulls eyes for D and ranged for the short interval when trailic-is elements respectively is shown at X, while halted, and which arrangement is shown in the other bank of lampsincludinggreen and Fig. 6'. .redbulls eyes for the D and C elements rep In 0rd 1" that the entire regulating system spectively 'is shown at Y. r may hecaused to become inoperative,'bycon"..

- Wire 6667 'are connected to t-hebank of cealing .both sets nf semaphores for the; lamp X, while wires 6658 are similarly con units, a switch 83 84 is provided at the con oted to the bank Y. tral station, which when opened will dis- 66 to lead 76.

semaphores, as shown in Fig.9,

Y the semaphores are as shown ip Fig; 7. ,With" contact maker- O72 bridging its contacts,

- ,of lamps, which may be tracedfro'm' lead 75,

which also'leads to contact 070, through contact'maker O72, contact 071, an extencompletedmnd the signals remain in this poo parts in theposition shown in Fig. 6, arm'atures G are energlzed by a current o l: revparts were as-shown' in Fig; 9, and as arrow Hphores. The D armaturesnot .heingener "gizecL-they' will continue .to d1splay 'sto 1- semaphores, andithe parts are .thusayzam arand contact 'maker 072 will bridge its con v ergizod-,'-they will rotate.to bring deta n the As, contact- Inakers P72," l t-72 U72, and connect-the go semaphore armatures of both I move beyond their contacts, and the sets of elements, and consequently as the cyeieifrents displaying stop semaphores, and ole of operation continues, the stop sema the}?!elenirlts-displaying go semaphores, as phores of the elements will be drawn clown "sewn in Fig. 7, contact maker 072 will without a corresponding upward swing of have already passed. beyond its contacts, and t e go semaphores. contact make1' 'N72 will bridge its contacts phores have been thus moveddown,-the cen .and remain in bridging position until just tral control discs may be stopped a before the start of the interval when the by leave t e System in inoperative position. signal elements display gosemaphores, and The SWitL-h has 6 de 83 n the D elements display stopsemaphores. ra g in the Split of'wire 81"leading to con- VVhenin this position a lamp circuit is closed tact L42, and Its other blade 84 positioned through in the split of wire 80 which leads to cont tacts M, so that opening said switch willdis. wconnect the go semaphore armatures; as will whichmay betraced from'lecd 7? an extensionej'fr'om contact P70 to contac N70, through contact maker N72, contact of wire 81 connected" j described.

thence through the split The operation of to wire 58., The circuit continues through the bank of lamps Y and thence through wire 7 reference to Figs. 10%13. Switch 61-63 is When the signal elements display g0 seinaclosed, and through handle 32,- the disc 31 is phores; and the D elements display stop and contact the position. shown in Fig. 10.. In this pomakers P72, T72, V72, W72

The

willaiav already moved. beyond its contacts disconnect their contacts L d M.

f actsyand remain in said position until just; be'energiz'ed, and since these armatures are.

the local control unit of the system will he understood by.

turned from the position shown in Fig. 6 to.

h moved sition contact makers 43{i7 bridge their conbeyond their contacts, ontact ak N72 tacts'3435; andcontact makers and by VVhenall of the sema N71, an extension from contact Q71. and be readily understood, and-for the purpose before the interval again starts during which opp y n e d, e s o elements,

shown as the C elements, will display go .stop semaphores.

Circuits are closed as follows: The field winding circuit is from lead 7 6 through wire 79, connected to contact'Gi-lfi by a wire at the local control mechanism, through consion from ontact 1" and thence; as pre, tact-maker 44, G OntflCt G34, wlre 67, the field i l d ib d, t l i Th i itwindings E.,;w.1 re 69, contact F3 4:, contact continues through the'bdnk of g maker 43, and. contact F35, which 15 connectthence through wire'66 to lead 76.

With. the 'elem'ents of a unit; in-the posi- Ttion show'r r in 9, a; cycle ofoperation is a lamp circuit is closed through the'X bank through the extension to. contact N and.

aware connectedto lead-7 5.

lead 76 through wire 79 connected by a. wire v sition while the control disc's rotate so as to ybi in th Samebaok to the position gh wh. 'l35, through contact- .maker 46, contact 134:, in Fig, 6. It will he noted. that with 'theleadmg to connection 57," and thence through the armatures of the respective sets ofzele ".ments, as previously ."descrihed. Beyond versed polar ty from that utilized when the sequence whenthe G armatures are thus en-- oll connected.respectiyly by-theclosed switch go semaphores and display the stopsema 58-.59, the circuit 'continuesjto contact H34,

3 I The circuit throughthe armature's is front 61 63. "Beyondconnection. 6O- of wires semaphores, while the D elements display ed to a wire of-the local control leading to I of the local controlmechanism to contact the armati'ires the circuits continue through I wires 58 and 59 and throughwires 58 and I25 7' through Contact, maker 45, and contactH35- which is connected to the wire leading to wire 85 and thence to leadfl 5.' Beyond c011 j nection 62 of wires 58"-59, the other-part of the circuit continues to contact; J34,

[through contactmaker 47, contact J and to the wire leading to wire 85 connected to lead 75. v r I i As soon as'the armaturcs have been thus movedto display the signals as described, disc 31 is advanced to a neutral position shown ini Fig. 11, when contact makers 43-47 bridge their contacts 35-36, with contact makers 50 and 51 still heyond'their contacts; and wherein; contact maker 49 bridges contacts 38 39. 'The circuits through the'armatures-are then broken in order to Conserve electrical. energy, but a lamp circuit is closedt hrough the bank of lamps Y in order that the G and I) ele-v ments which display go and stop semaphores i respectively, will also show green and red lights respectively. This lamp circuit 15 'from lead 76, through the wiring of the local control as.previouslydescrihed, to wire 66, thence throughthe Y bank of lamps to wire 58, thence through a wire leading l)(-- yond connection 60 to contact 38, through contact maker 49, contact 39, through a wire leadin from the same to contact J 36,

I throug contact maker' ll', and-contact 335 to the wire connected .to wire: 85 leading to lead 75.-. I

The parts are allowed toremain in this position as long as itis desired to permitments, in order that the C elements will to lead 75.

show stop signals while the D elements dis play go semaphores.

Thefield winding circuit is now formed from lead 76, through wire 79, a wire connected' to contact G35 which is in turn 0011- nected to contact G36, through contact maker 44, and contact G37 which is connected to wire 67. The circuit continues throughthe field windings, wire 69, a wire leading from" the same to contact F37, contact maker 43,

contact F36 connected to contact F35, and thence to the wire leading to wire and The armature circuits are from lead through wire 85 to contact H35 connected to contact H36, and thence through contact.

maker 45, and contact H37, to connection 57.

The circuits continue through-the armaturcs of the respective sets of elements, as previously'described, and then through wires 58' and'59, and through wires 58* and '59 connected respectively by its closed switch 61 63. Beyond, connection 60 of wires 58-59, one part of thecircuit-continues by the wire leading to contact 38, through con- 1 tact maker 48, contact39, contact J36, contact maker 47,-and contact J37, connected to wire 79 leading to lead 76. The other part of the circuit continues from wires 58-59 through a wire; leading to contact 137, through contact maker 46, contact I36 connected tocontact I35, and thence through the connection. to wire 79 'andthe lead 76.

energized by acurrent of reverse-polarity, land as a consequence, the sema hores will move 'tothe position shown in ig.,13, signalling for movement of traflic, in the opposite one of cross directions.

,As soon as the elements are in this position, disc 31 is slightly reversely rotatedlto. .a second neutral position shown in Fig."12,

and wherein contact maker 43-47 bridge It will thus be seen that the armature's are their contacts 35-36, with contact makers 50 and 51 beyond their contacts, and with contact maker 49 bridging contacts The c rcuits through the armatures are 'now broken so as to conserve electricity, but a lamp hireuit is closed through the bank of lamps X in order to light the proper lamps for the rwpective signals.

' i, This lamp circuit ls-from lea (1,7 to wire 66 as previously described, through the X bank of lamps, to .wire 67, and thence to contact G34 which is connected to contact 40, and through. contact makei{49',-end contact 39 to contactJ36, and thence through contact maker 47 ,and contact J35 to wire" and lead 75. 5 The parts are allowedto remain inthis position as long ,as.. it is desired toipermit' trafiic movement in'stopping of traffic in the reversed cross directions, and then disc 31 is moved back through its first neutral position to theposition shown in Fig. 10 in order 7 that the armaturesmayv be a ain energized by a current of reversed p0 arity, as previouslv described, and in order .to again chat; the signals so as to permit of traffic movement in the, reversed cross direction.

This cycle of-operationfor local control may be continued aslong as desired, andthe signalling unit may then, be returned to central station control by opening switch 61-63 and rotating disc 31 to the position shown in Fig. 6 and as previously describ'ed. Variousrch es ma be, made without departing from e spirit-of the invention as p claimed. What is claimedis; u 1. 'A street t-raifi'c regulator comprising a support, two counter-balanced signal arms,

mountedon said. support, meansfor-'independently moving said arms to signaling and non-signaling positions, includ f armature for each arm, a, field common both armatures, and means for energiz ng said field with current of one polarity and for selectively energizing said armatun s independently with currents of ditlerent polarities.

2. In a traffic regulator, the combination of a signal support, two armaturescarried thereby with their common fields, counter- H balanced Signaling arms mounted on the 'fields with current of onepolarity and for selectively energizing said armatures independently with current of different polarities;

3. In a traffic regulator, a signal support,

counterbalanced signaling arms mounted on thesupportland adapted to be independently translated-to signaling and non-signaling )sitions. an armature for each arm a 1 7 'field common to both armatures, and means a ing adapte for separately transmitting current ,to the armatures to efiect independent motion of the signaling arms to translate the same from one si naling position, said means heto effect reversion motion of aersgeae.

the signaling arms by reversal of current to the armatures.

4. In a trafiic regulator, a signal support, counterbalanced signaling arms movalile in a vertical plane to and from signaling positions, two armatures and their fields sen ,arately connected to the signaling arms,and

means for energizing said fields with a current of one polarity and for selectively energizing said armature indepeudentlv with currents of different polarities.

5. In a trafiic regulator, the combination with a signal support of two counter-halam-ed signaling arms mounted by the support and movable in vertical planes to signaling and nonsignaling positions independently of each other, two armatures and their common fields separately connected ivith such signaling armsfor translating the same from one signaling position to another, and means for energizing said field with current of one polarity and for selectively energizing said armatures independently with currents of different polarities.

In testimony whereof I have. signed my name to this specification.

FRANK fnusnaniml 

